So can I just use it in my oil tank and gas? Will not using it in my vacuum line affect it any?

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Using it thru the vacuum line can go great...you'll get a huge cloud of shit out of the exhaust and the engine will be pretty clean....Some folks butt dynos have reported more pep and power after a Seafoam treatment.....It can also eat thru catalytic converters.

I don't use it thru the vacuum line any more....just personal preference.

I've heard a lot about Seafoam and I'd like to try it in my recently purchased 2001 v6. What is the procedure when you introduce it through the vacuum line? I am planning to put in AmsOil on the next oil change so thought I'd like to clean up the bottom end try it in the engine oil as well. Anything special you need to do for that? I've never tried Seafoam before and would hate to screw anything up, so feel free to pile on the details, or send me to a thread.

I've been wanting to do it too. Should I wait until I'm about to change the oil to do it through the vac line? I've heard it can knock crap loose that ends up in the oil, but when you think about it, isn't that impossible?

I've been wanting to do it too. Should I wait until I'm about to change the oil to do it through the vac line? I've heard it can knock crap loose that ends up in the oil, but when you think about it, isn't that impossible?

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If you haven't ever done it before I would pour the recommended amount into the oil about 50-75 miles before an oil change. Then before you change the oil introduce it to the vacuum line as directed...Then go drive for 25-30 mins. Make sure it completely stops smoking. THEN change the oil.

It's going to clean sludge and carbon buildups out of the engine- so you may end up with crap in the oil....

This is a great way to find exhaust leaks. I'm goin to try that vacuum line from now on. I pull one more towards the drivers side. After I shut the truck off however the truck keeps running (like a diesel?) none of my other vehicles have done this. Any ideas why it would do this. I don't like doing it anymore because it sounds bad for the truck.

I have read and reread the info and am confused about the vacuum line route. Some say the vacuum line only feeds one or two cylinders. What's the real deal? I have run a can through a tank of fuel but haven't seen any real changes. I did use some when I got my outboard boat motor running after 5-7 years of sitting. We cleaned the carb, put everything back together and sprayed the seafoam into the throttle body via an old spray bottle and WOW what a difference. It smoked like crazy also. Another interesting side effect... about 3 feet down on the side of my garage, where the exhaust was facing, is quite a bit darker then the rest of the garage brick. It tells me that it blew some junk out of the motor/carb. I have been thinking about doing the same approach to the Tacoma since I am confused about the vacuum line approach (one or two cylinder cleaning or not).

I have read and reread the info and am confused about the vacuum line route. Some say the vacuum line only feeds one or two cylinders. What's the real deal? I have run a can through a tank of fuel but haven't seen any real changes. I did use some when I got my outboard boat motor running after 5-7 years of sitting. We cleaned the carb, put everything back together and sprayed the seafoam into the throttle body via an old spray bottle and WOW what a difference. It smoked like crazy also. Another interesting side effect... about 3 feet down on the side of my garage, where the exhaust was facing, is quite a bit darker then the rest of the garage brick. It tells me that it blew some junk out of the motor/carb. I have been thinking about doing the same approach to the Tacoma since I am confused about the vacuum line approach (one or two cylinder cleaning or not).

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if you run it thru the brake booster line....it'll clean the whole combustion chamber..........the whole intake.